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Thread: Think i've sorted the dodgy idle! woohoo!!!

  
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    anthony cooper's Avatar
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    Think i've sorted the dodgy idle! woohoo!!!

    Had problems with our 1999 mk4 astra 1.4 16v idling all over the place but lately after changing the cranksensor and cleaning out the throttle body and idle valve its been sitting at 1500rpm steadly so been having a look at it today and think ive sorted it. I ended up taking the throttle position switch off and drilling out the mounting bolt holes so it had some adjustment and refitting it and starting the engine and turning it slightly until the revs dropped and secured the switch with just 1 screw as the washer on the screw by the wiring plug obstructed the swiches position. It now idles at around 800-900rpm and is fine driving doesnt drop any lower or rev itself so hoping its all fixed!

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    If you cant fix it bodge it

    White is the new Black

    FARMYARD TUNING

    LEH IS THE FUTURE

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    well done mate, but the fault was most probably the ICV plunger anyway.

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    Removed and cleaned the icv and tried replacing it with another unit but it didnt cure the fault also tried another tps switch! Cant see how it's a bodge if it works fine and cures the problem and was something vauxhall use to do on 1.8 and 2.0 vectras, etc with idle faults except they used their diagnostic equipment to set it!

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    indeed vauxhall did use this crude method on the vectra to get the bags of shite running somewhere normal, but later found it was very little to do with the TPS and they were merely masking other problems. if it has worked for you, then that is good mate. all that we all want is our Astra's running sweet at the end of the day

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    Ah right didnt know that! Just seems alot of these on here with the same problems and no one having any luck sorting them and though i had and that it might help other people. Will have to keep any eye on it and see how it goes!

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    you should be fine mate, there are a lot of vectra's out there still running with this modification on them, the others ended up having new throttle bodies at a cost of over £350, after their warranties expired, but vauxhall would not let on it was the throttle bodies in the first place, that would be far too costly for Vauxhall to own up to that

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    i am havin simaler probs with my brothers and after £240 ish inc new EGR, TPS, ECT sensor, idel controle valve and multipal other items it is now regretably bookin in to a specialist (although not vauxhall) for them to sort it i have had enough to many other motors to look at and a pub to run

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    Ive got a decent second hand throttle body which i bought purely for the sensors attached so may have to swap them over and see what happens!

    antcull- Yours was one of the other posts ive been watching incase you got it sorted, hope you do now!

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    Yeh me to mate, take it youve seen what i have replaced up to now and it is still ideling between 1500 and 3000 rpm i hate that car (apart from when its runnin smooth)

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